US1969213A - Copper salt compositions, particularly as a preservative liquid for treating timber fabric and other materials - Google Patents

Copper salt compositions, particularly as a preservative liquid for treating timber fabric and other materials Download PDF

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Publication number
US1969213A
US1969213A US577862A US57786231A US1969213A US 1969213 A US1969213 A US 1969213A US 577862 A US577862 A US 577862A US 57786231 A US57786231 A US 57786231A US 1969213 A US1969213 A US 1969213A
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United States
Prior art keywords
copper
fabric
copper salt
materials
water
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Expired - Lifetime
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US577862A
Inventor
Eyre John Vargas
Langwell Herbert
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Distillers Co Yeast Ltd
Distillers Co Ltd
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Distillers Co Yeast Ltd
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Classifications

    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
    • A01N59/00—Biocides, pest repellants or attractants, or plant growth regulators containing elements or inorganic compounds
    • A01N59/16—Heavy metals; Compounds thereof
    • A01N59/20—Copper
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27K—PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
    • B27K3/00—Impregnating wood, e.g. impregnation pretreatment, for example puncturing; Wood impregnation aids not directly involved in the impregnation process
    • B27K3/16—Inorganic impregnating agents
    • B27K3/22—Compounds of zinc or copper
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27K—PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
    • B27K3/00—Impregnating wood, e.g. impregnation pretreatment, for example puncturing; Wood impregnation aids not directly involved in the impregnation process
    • B27K3/52—Impregnating agents containing mixtures of inorganic and organic compounds

Definitions

  • This invention relates to copper salt compositions, particularly as a preservative liquid for treating timber fabric and other materials subject to deterioration by fungi, dry rot, attack by termites, and so forth.
  • solutions of copper salts of the higher fatty acids, particularly copper oleate are used as the disperse phase in a water emulsion.
  • the copper salt in its solvent can be emulsified in water by means of a suitable emulsifying agent and be stored as such ready for use, or addition of the water or of the water and emulsifier may be deferred until just prior to use.
  • emulsifying agent and the solvent emulsions can be made of high penetrability, freedom from objectionable odour and risk of fire, and of far less cost than mere solutions.
  • Copper salts of saturated and/or unsaturated fatty acids substantially insoluble in water such as for example those of the acids resulting from soap and glycerine manufacture may be dissolved with any appropriate solvent.
  • the amount of water in which emulsification is effected may vary considerably; we may for example use only part of a total amount of water for emulsification before storage and add the remainder just before use.
  • Solvents quite appreciably soluble in water such for example as butyl alcohol or diacetone alcohol, may be used by employing salting out agents in conjunction with them to reduce their Water solubility.
  • Example 1 -tate until dissolved. On cooling 825 gms. of neu'-- tral 50% Turkey red oil (sulphonated castor oil) I 1 is added and well incorporated. This mixture can then be emulsified as and when required in an amount of water not exceeding 3 litres. As the Turkey red oil of commerce may not be neutral, its condition may require adjusting with dilute acid or alkali.
  • Turkey red oil sulphonated castor oil
  • Example 2 The sodium chloride in Example 2 is replaced by 750 gms. of Na2SO4.lOH2O.
  • Another example of a salting out agent is sodium acetate.
  • solvents used in this invention are neutral, polar compounds rather than the non-neutral or non-polar compounds previously employed.
  • a copper-containing water emulsion comprising a solution in butyl lactate of a substantially water-insoluble copper salt of a higher fatty acid, and an emulsifying agent, maintaining the solution dispersed in the water.
  • a copper-containing water emulsion comprising a solution in butyl alcohol of a substantially water-insoluble copper salt of a higher fatty acid, and an emulsifying agent, maintaining the solution dispersed in the water.
  • a copper-containing water emulsion comprising a solution in diacetone alcohol of a substantially water-insoluble copper salt of a higher fatty acid, and an emulsifying agent, maintaining the solution dispersed in the water.
  • a copper-containing Water emulsion consist- I ig of a solution of copper oleate in butyl lactate and an emulsifying agent, maintaining the solu- 6.
  • a copper-containing water emulsion consisting of a solution of copper oleate in butyl lactate, and Turkey red oil as emulsifying agent.
  • a copper-containing water emulsion consisting of a solution of copper oleate in diacetone alcohol, and Turkey'red oil as emusifying agent.
  • a compos'ition consisting of copper oleate, butyl alcohol and Turkey red oil.
  • acomposition consisting of copper oleate,diacetonealcohol and Turkey red oil.

Description

Patented Aug. 7, 1934 COPPER SALT ooMPosIT ons, PARTICU, LARLY AS A PRESERYAT'IVE LIQUID FOR TREATING TIMBER FABRIC AND OTHER MATERIALS John Vargas Eyre and Herbert Langwell, Epsom, England, assignors to The Distillers Company Limited, Edinburgh, Great Britain No Drawing. Application November 28, 1931; Serial No. 577,862. In Great Britain November 13 Claims.
This invention relates to copper salt compositions, particularly as a preservative liquid for treating timber fabric and other materials subject to deterioration by fungi, dry rot, attack by termites, and so forth.
It is well known that most lower organisms are extremely sensitive to the toxic action of copper salts. For example copper oleate dissolved in a hydrocarbon solvent is used for preserving fishing nets. In the case, however, of requiring to use copper containing liquids in large amounts and for special purposes such as for treating timber, considerations of cost, odour, infiammability and the like become important and the chief object of the present invention is to provide a copper-containing composition capable of being used in large quantities at low cost, and possessed of good penetrability and other qualities necessary for the purpose in view.
According to the present invention solutions of copper salts of the higher fatty acids, particularly copper oleate, are used as the disperse phase in a water emulsion. The copper salt in its solvent can be emulsified in water by means of a suitable emulsifying agent and be stored as such ready for use, or addition of the water or of the water and emulsifier may be deferred until just prior to use. By suitably choosing the emulsifying agent and the solvent, emulsions can be made of high penetrability, freedom from objectionable odour and risk of fire, and of far less cost than mere solutions. Copper salts of saturated and/or unsaturated fatty acids substantially insoluble in water such as for example those of the acids resulting from soap and glycerine manufacture may be dissolved with any appropriate solvent. I
The amount of water in which emulsification is effected may vary considerably; we may for example use only part of a total amount of water for emulsification before storage and add the remainder just before use.
Solvents quite appreciably soluble in water, such for example as butyl alcohol or diacetone alcohol, may be used by employing salting out agents in conjunction with them to reduce their Water solubility.
The following are three examples of copper salt preservative compositions prepared in accordance with the present invention.
Example 1 -tate until dissolved. On cooling 825 gms. of neu'-- tral 50% Turkey red oil (sulphonated castor oil) I 1 is added and well incorporated. This mixture can then be emulsified as and when required in an amount of water not exceeding 3 litres. As the Turkey red oil of commerce may not be neutral, its condition may require adjusting with dilute acid or alkali.
Example 2 Example 3 The sodium chloride in Example 2 is replaced by 750 gms. of Na2SO4.lOH2O.
Another example of a salting out agent is sodium acetate.
It is to be noted that the solvents used in this invention are neutral, polar compounds rather than the non-neutral or non-polar compounds previously employed.
What we claim is:-
1. A copper-containing water emulsion comprising a solution in butyl lactate of a substantially water-insoluble copper salt of a higher fatty acid, and an emulsifying agent, maintaining the solution dispersed in the water.
2. A copper-containing water emulsion comprising a solution in butyl alcohol of a substantially water-insoluble copper salt of a higher fatty acid, and an emulsifying agent, maintaining the solution dispersed in the water.
3. A copper-containing water emulsion comprising a solution in diacetone alcohol of a substantially water-insoluble copper salt of a higher fatty acid, and an emulsifying agent, maintaining the solution dispersed in the water.
95.] 4. A copper-containing Water emulsion consist- I ig of a solution of copper oleate in butyl lactate and an emulsifying agent, maintaining the solu- 6. A copper-containing water emulsion consisting of a solution of copper oleate in butyl lactate, and Turkey red oil as emulsifying agent.
7. A copper-containing water emulsion ccnsisting of a solution of copper oleate in butyl alcohol, and Turkey red oil as emulsifying agent.
8. A copper-containing water emulsion consisting of a solution of copper oleate in diacetone alcohol, and Turkey'red oil as emusifying agent.
9. For use in making a copper containing Water emusion by dispersal in water, a composition consisting of copper oleate, butyl lactate and Turkey red oil. I
10. For use in making a copper-containing water emulsion by dispersal in water, a compos'ition consisting of copper oleate, butyl alcohol and Turkey red oil.
11. For use in making a copper-containing water emulsion by dispersal in water, acomposition consisting of copper oleate,diacetonealcohol and Turkey red oil.
12. A copper-containing Water emulsion com- I ioo
US577862A 1930-11-29 1931-11-28 Copper salt compositions, particularly as a preservative liquid for treating timber fabric and other materials Expired - Lifetime US1969213A (en)

Applications Claiming Priority (1)

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GB1969213X 1930-11-29

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2425828A (en) * 1944-12-13 1947-08-19 Nopco Chem Co Metallic soap dispersions
US2494941A (en) * 1946-07-27 1950-01-17 Nuodex Products Co Inc Pest control agents
US2531460A (en) * 1950-11-28 Stabilized metallic soaps
US4001400A (en) * 1971-01-26 1977-01-04 Hager Aktiebolag Preservative for wood

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2531460A (en) * 1950-11-28 Stabilized metallic soaps
US2425828A (en) * 1944-12-13 1947-08-19 Nopco Chem Co Metallic soap dispersions
US2494941A (en) * 1946-07-27 1950-01-17 Nuodex Products Co Inc Pest control agents
US4001400A (en) * 1971-01-26 1977-01-04 Hager Aktiebolag Preservative for wood

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